package lab02.Test19;

import java.util.Scanner;

public class Test {
    public static StringBuffer convertString(String str){
        String upStr=str.toUpperCase();
        String lowStr=str.toLowerCase();
        StringBuffer buf=new StringBuffer(str.length());
        for (int i=0,k=str.length();i<k;i++){
            {
                if(str.charAt(i)==upStr.charAt(i)){
                    buf.append(lowStr.charAt(i));
                }else{
                    buf.append(upStr.charAt(i));
                }
            }
        }
        return buf;
    }

    public static void main(String[] args) {
        String result;
        Scanner scanner=new Scanner(System.in);
        result=scanner.next();
        System.out.println(result);
        StringBuffer ss=convertString(result);
        System.out.println("将字符串进行大小写转换："+convertString(result));
        System.out.println("将字符串倒序输出："+ss.reverse());
    }
}
